Yes - I know it sounds crazy - but I have Soloshot 3 camera system that is a total pain to charge the base unit battery.

It says to use a 2A mobile phone charger ... which I have several, but the unit still still fails to charge.

I have been using a powerbank but that has finally said enough ...

What i would like to do is connect a B6 or Accucel 6 to it and charge from a controlled user programmable source. But cannot find any lead that connects Deans or XT60 or 4mm banana plugs to a mini USB.

Yes - looked ..as I have quite a few car adaptors to USB .... and supposedly capable of 2A ... but when connected to the Soloshot - they just don't deliver .. I think the SS is resisting the charge and current falls below necessary.

I was hoping that I could find a lead to plug into my LiPo chargers and try force this ******* soloshot battery to play ball !!

At moment I have a DJI P3 battery via Telsin discharger plugged into it ... hoping that may kick the ba****d into working !!

Bear in mind that the battery 'charger' for the Soloshot is built into the battery unit itself. The mobile phone 'charger' that you were using isn't really a charger as we know it, it's just a 'dumb' 5A power supply which serves the exact same purpose as the 12V+ power supply you run your B6 off.

If you wanted to charge the solo-shot battery with a B6 LiPo charger then you would need to open up the battery case and hook up directly onto the connectors on the actual battery cells, thus bypassing the inbuilt charging circuit. This can be done, I've done it myself a few times, but it does mean opening up the battery case, which may be easy or may be very tricky, depending on how 'tamper proof' Soloshot made it.

Hooking up a LiPo charger to an input that expects to receive a constant 5V supply runs a very high risk of damaging the internal charging circuit, maybe even causing a fire. This probably explains why you dont get leads to do it.